kolibrios/programs/system/shell/shell.c

#include "all.h"

/// ===========================================================

int dir_check(char dir[])
/// just checks, if dir[] is really a directory
{
kol_struct70	k70;
int		result;

k70.p00 = 1;
k70.p04 = 0;
//k70.p08 = 0;
k70.p12 = 2; // enough to read . & ..
k70.p16 = (unsigned)malloc(32+k70.p12*560);
k70.p20 = 0;
k70.p21 = dir;

result = kol_file_70(&k70);

free((void*)k70.p16);

if ( (0 == result)||(6 == result) )  // 6 is possible ???
	return TRUE;
else 
	return FALSE;

}

/// ===========================================================

void dir_truncate(char dir[])
{
int i;
i = strlen(dir)-1;
for (;;i--)
	if ('/' == dir[i])
		{
		dir[i+1] = 0;
		break;
		}
}
/// ===========================================================

void get_file_dir_loc(char *filepath, char *dir_path)
{
	char *res = strrchr(filepath, '/');
	if (res == 0)
	{
		dir_path = '\0';
		return;
	}
	size_t pos = res - filepath;
	strncpy(dir_path, filepath, pos);
	dir_path[pos] = '\0';
}

/// ===========================================================

int file_check(char file[])
{
kol_struct70	k70;
int		result;

k70.p00 = 0;
k70.p04 = 0;
//k70.p08 = 0;
k70.p12 = 0;
k70.p16 = 0;
k70.p20 = 0;
k70.p21 = file;

result = kol_file_70(&k70);

if (0 == result)
	return TRUE;
else 
	return FALSE;
}

/// ===========================================================

void file_not_found(char file[])
{
#if LANG_ENG
	printf ("  File '%s' not found.\n\r", file);
#elif LANG_RUS
	printf ("  <20><><EFBFBD><EFBFBD> '%s' <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.\n\r", file);
#endif
}

/// ===========================================================

int iswhite(char c)
{
return ((' ' == c) || ('\t' == c) || (13 == c) || (10 == c));
}

/// ===========================================================

void trim(char string[])
{
int i, j;

for (i=0; ;i++)
	if ( !iswhite(string[i]) )
		break;
j = 0;
for (;;i++, j++)
	{
	string[j] = string[i];
	if ('\0' == string[i] )
		break;
	}

for (i=0; ;i++)
	if ('\0' == string[i])
		break;
i--;
for (;i>0;--i)
	if ( iswhite(string[i]) )
		string[i] = '\0';
	else
		break;
}

/// ===========================================================

void kol_main()
{

NUM_OF_CMD = sizeof(COMMANDS)/sizeof(COMMANDS[0]);

strcpy(title, "SHELL ");
strcat(title, SHELL_VERSION);
CONSOLE_INIT(title);

if (sizeof (kol_struct70) != 25)
{
	printf("Invalid struct align kol_struct70, need to fix compile options\n\r");
	kol_exit();
}


//strcpy(cur_dir, PATH);
//dir_truncate(cur_dir);
getcwd(cur_dir, sizeof cur_dir);
//printf("curdir %s\n", cur_dir);

con_set_cursor_height(con_get_font_height()-1);

ALIASES = malloc(128*1024);

if (!PARAM || PARAM[0] == 0)
{
   strcpy(CMD, PATH);
   dir_truncate(CMD);
   strcat(CMD, ".shell");
   if ( !file_check(CMD) )
       strcpy(CMD, "/sys/settings/.shell");
}
else
{
	if (PARAM[0] == '/')
	{
		strcpy(cur_dir, PARAM);
		*(strrchr(cur_dir, '/')+1)=0;
	}
	strcpy(CMD, PARAM);
}

command_execute();

for (;;)
	{
	//printf("\033[32;1m"); 
	printf ("# ");
	//printf("\033[0m"); 
	command_get();
	command_execute();
	}

_exit(0);
kol_exit();
}

/// ===========================================================